2 * Copyright (c) 2007, Novell Inc.
4 * This program is licensed under the BSD license, read LICENSE.BSD
5 * for further information
13 #ifndef LIBSOLV_SOLVER_H
14 #define LIBSOLV_SOLVER_H
16 #include "pooltypes.h"
21 #include "transaction.h"
30 Pool *pool; /* back pointer to pool */
31 Queue job; /* copy of the job we're solving */
33 int (*solution_callback)(struct _Solver *solv, void *data);
34 void *solution_callback_data;
36 int pooljobcnt; /* number of pooljob entries in job queue */
38 #ifdef LIBSOLV_INTERNAL
39 Repo *installed; /* copy of pool->installed */
41 /* list of rules, ordered
42 * rpm rules first, then features, updates, jobs, learnt
43 * see start/end offsets below
45 Rule *rules; /* all rules */
46 Id nrules; /* [Offset] index of the last rule */
48 Queue ruleassertions; /* Queue of all assertion rules */
50 /* start/end offset for rule 'areas' */
52 Id rpmrules_end; /* [Offset] rpm rules end */
54 Id featurerules; /* feature rules start/end */
57 Id updaterules; /* policy rules, e.g. keep packages installed or update. All literals > 0 */
60 Id jobrules; /* user rules */
63 Id infarchrules; /* inferior arch rules */
66 Id duprules; /* dist upgrade rules */
69 Id bestrules; /* rules from SOLVER_FORCEBEST */
73 Id choicerules; /* choice rules (always weak) */
77 Id learntrules; /* learnt rules, (end == nrules) */
79 Map noupdate; /* don't try to update these
80 installed solvables */
81 Map multiversion; /* ignore obsoletes for these (multiinstall) */
83 Map updatemap; /* bring these installed packages to the newest version */
84 int updatemap_all; /* bring all packages to the newest version */
86 Map bestupdatemap; /* create best rule for those packages */
87 int bestupdatemap_all; /* bring all packages to the newest version */
89 Map fixmap; /* fix these packages */
90 int fixmap_all; /* fix all packages */
92 Queue weakruleq; /* index into 'rules' for weak ones */
93 Map weakrulemap; /* map rule# to '1' for weak rules, 1..learntrules */
95 Id *watches; /* Array of rule offsets
96 * watches has nsolvables*2 entries and is addressed from the middle
97 * middle-solvable : decision to conflict, offset point to linked-list of rules
98 * middle+solvable : decision to install: offset point to linked-list of rules
101 Queue ruletojob; /* index into job queue: jobs for which a rule exits */
104 Queue decisionq; /* >0:install, <0:remove/conflict */
105 Queue decisionq_why; /* index of rule, Offset into rules */
107 Id *decisionmap; /* map for all available solvables,
109 * > 0: level of decision when installed,
110 * < 0: level of decision when conflict */
112 int decisioncnt_update;
113 int decisioncnt_keep;
114 int decisioncnt_resolve;
115 int decisioncnt_weak;
116 int decisioncnt_orphan;
118 /* learnt rule history */
123 int propagate_index; /* index into decisionq for non-propagated decisions */
125 Queue problems; /* list of lists of conflicting rules, < 0 for job rules */
126 Queue solutions; /* refined problem storage space */
128 Queue orphaned; /* orphaned packages (to be removed?) */
130 int stats_learned; /* statistic */
131 int stats_unsolvable; /* statistic */
133 Map recommendsmap; /* recommended packages from decisionmap */
134 Map suggestsmap; /* suggested packages from decisionmap */
135 int recommends_index; /* recommendsmap/suggestsmap is created up to this level */
137 Id *obsoletes; /* obsoletes for each installed solvable */
138 Id *obsoletes_data; /* data area for obsoletes */
139 Id *specialupdaters; /* updaters for packages with a limited update rule */
141 /*-------------------------------------------------------------------------------------------------------------
142 * Solver configuration
143 *-------------------------------------------------------------------------------------------------------------*/
145 int allowdowngrade; /* allow to downgrade installed solvable */
146 int allownamechange; /* allow to change name of installed solvables */
147 int allowarchchange; /* allow to change architecture of installed solvables */
148 int allowvendorchange; /* allow to change vendor of installed solvables */
149 int allowuninstall; /* allow removal of installed solvables */
150 int noupdateprovide; /* true: update packages needs not to provide old package */
151 int dosplitprovides; /* true: consider legacy split provides */
152 int dontinstallrecommended; /* true: do not install recommended packages */
153 int addalreadyrecommended; /* true: also install recommended packages that were already recommended by the installed packages */
154 int dontshowinstalledrecommended; /* true: do not show recommended packages that are already installed */
156 int noinfarchcheck; /* true: do not forbid inferior architectures */
157 int keepexplicitobsoletes; /* true: honor obsoletes during multiinstall */
158 int bestobeypolicy; /* true: stay in policy with the best rules */
159 int noautotarget; /* true: do not assume targeted for up/dup jobs that contain no installed solvable */
162 Map dupmap; /* dup these packages*/
163 int dupmap_all; /* dup all packages */
164 Map dupinvolvedmap; /* packages involved in dup process */
165 int dup_allowdowngrade; /* dup mode: allow to downgrade installed solvable */
166 int dup_allownamechange; /* dup mode: allow to change name of installed solvable */
167 int dup_allowarchchange; /* dup mode: allow to change architecture of installed solvables */
168 int dup_allowvendorchange; /* dup mode: allow to change vendor of installed solvables */
170 Map droporphanedmap; /* packages to drop in dup mode */
171 int droporphanedmap_all;
173 Map cleandepsmap; /* try to drop these packages as of cleandeps erases */
175 Queue *ruleinfoq; /* tmp space for solver_ruleinfo() */
177 Queue *cleandeps_updatepkgs; /* packages we update in cleandeps mode */
178 Queue *cleandeps_mistakes; /* mistakes we made */
180 Queue *update_targets; /* update to specific packages */
182 Queue *installsuppdepq; /* deps from the install namespace provides hack */
184 Queue addedmap_deduceq; /* deduce addedmap from rpm rules */
185 Id *instbuddy; /* buddies of installed packages */
186 #endif /* LIBSOLV_INTERNAL */
189 typedef struct _Solver Solver;
195 #define SOLVER_SOLVABLE 0x01
196 #define SOLVER_SOLVABLE_NAME 0x02
197 #define SOLVER_SOLVABLE_PROVIDES 0x03
198 #define SOLVER_SOLVABLE_ONE_OF 0x04
199 #define SOLVER_SOLVABLE_REPO 0x05
200 #define SOLVER_SOLVABLE_ALL 0x06
202 #define SOLVER_SELECTMASK 0xff
204 #define SOLVER_NOOP 0x0000
205 #define SOLVER_INSTALL 0x0100
206 #define SOLVER_ERASE 0x0200
207 #define SOLVER_UPDATE 0x0300
208 #define SOLVER_WEAKENDEPS 0x0400
209 #define SOLVER_MULTIVERSION 0x0500
210 #define SOLVER_LOCK 0x0600
211 #define SOLVER_DISTUPGRADE 0x0700
212 #define SOLVER_VERIFY 0x0800
213 #define SOLVER_DROP_ORPHANED 0x0900
214 #define SOLVER_USERINSTALLED 0x0a00
216 #define SOLVER_JOBMASK 0xff00
218 #define SOLVER_WEAK 0x010000
219 #define SOLVER_ESSENTIAL 0x020000
220 #define SOLVER_CLEANDEPS 0x040000
221 /* ORUPDATE makes SOLVER_INSTALL not prune to installed
222 * packages, thus updating installed packages */
223 #define SOLVER_ORUPDATE 0x080000
224 /* FORCEBEST makes the solver insist on best packages, so
225 * you will get problem reported if the best package is
226 * not installable. This can be used with INSTALL, UPDATE
228 #define SOLVER_FORCEBEST 0x100000
229 /* TARGETED is used in up/dup jobs to make the solver
230 * treat the specified selection as target packages.
231 * It is automatically assumed if the selection does not
232 * contain an "installed" package unless the
233 * NO_AUTOTARGET solver flag is set */
234 #define SOLVER_TARGETED 0x200000
236 #define SOLVER_SETEV 0x01000000
237 #define SOLVER_SETEVR 0x02000000
238 #define SOLVER_SETARCH 0x04000000
239 #define SOLVER_SETVENDOR 0x08000000
240 #define SOLVER_SETREPO 0x10000000
241 #define SOLVER_NOAUTOSET 0x20000000
242 #define SOLVER_SETNAME 0x40000000
244 #define SOLVER_SETMASK 0x7f000000
247 #define SOLVER_NOOBSOLETES SOLVER_MULTIVERSION
249 #define SOLVER_REASON_UNRELATED 0
250 #define SOLVER_REASON_UNIT_RULE 1
251 #define SOLVER_REASON_KEEP_INSTALLED 2
252 #define SOLVER_REASON_RESOLVE_JOB 3
253 #define SOLVER_REASON_UPDATE_INSTALLED 4
254 #define SOLVER_REASON_CLEANDEPS_ERASE 5
255 #define SOLVER_REASON_RESOLVE 6
256 #define SOLVER_REASON_WEAKDEP 7
257 #define SOLVER_REASON_RESOLVE_ORPHAN 8
259 #define SOLVER_REASON_RECOMMENDED 16
260 #define SOLVER_REASON_SUPPLEMENTED 17
263 #define SOLVER_FLAG_ALLOW_DOWNGRADE 1
264 #define SOLVER_FLAG_ALLOW_ARCHCHANGE 2
265 #define SOLVER_FLAG_ALLOW_VENDORCHANGE 3
266 #define SOLVER_FLAG_ALLOW_UNINSTALL 4
267 #define SOLVER_FLAG_NO_UPDATEPROVIDE 5
268 #define SOLVER_FLAG_SPLITPROVIDES 6
269 #define SOLVER_FLAG_IGNORE_RECOMMENDED 7
270 #define SOLVER_FLAG_ADD_ALREADY_RECOMMENDED 8
271 #define SOLVER_FLAG_NO_INFARCHCHECK 9
272 #define SOLVER_FLAG_ALLOW_NAMECHANGE 10
273 #define SOLVER_FLAG_KEEP_EXPLICIT_OBSOLETES 11
274 #define SOLVER_FLAG_BEST_OBEY_POLICY 12
275 #define SOLVER_FLAG_NO_AUTOTARGET 13
277 extern Solver *solver_create(Pool *pool);
278 extern void solver_free(Solver *solv);
279 extern int solver_solve(Solver *solv, Queue *job);
280 extern Transaction *solver_create_transaction(Solver *solv);
281 extern int solver_set_flag(Solver *solv, int flag, int value);
282 extern int solver_get_flag(Solver *solv, int flag);
284 extern int solver_get_decisionlevel(Solver *solv, Id p);
285 extern void solver_get_decisionqueue(Solver *solv, Queue *decisionq);
286 extern int solver_get_lastdecisionblocklevel(Solver *solv);
287 extern void solver_get_decisionblock(Solver *solv, int level, Queue *decisionq);
289 extern void solver_get_orphaned(Solver *solv, Queue *orphanedq);
290 extern void solver_get_recommendations(Solver *solv, Queue *recommendationsq, Queue *suggestionsq, int noselected);
291 extern void solver_get_unneeded(Solver *solv, Queue *unneededq, int filtered);
293 extern int solver_describe_decision(Solver *solv, Id p, Id *infop);
294 extern void solver_describe_weakdep_decision(Solver *solv, Id p, Queue *whyq);
297 extern void solver_calculate_multiversionmap(Pool *pool, Queue *job, Map *multiversionmap);
298 extern void solver_calculate_noobsmap(Pool *pool, Queue *job, Map *multiversionmap); /* obsolete */
299 extern void solver_create_state_maps(Solver *solv, Map *installedmap, Map *conflictsmap);
301 extern void solver_calc_duchanges(Solver *solv, DUChanges *mps, int nmps);
302 extern int solver_calc_installsizechange(Solver *solv);
303 extern void solver_trivial_installable(Solver *solv, Queue *pkgs, Queue *res);
305 extern void pool_job2solvables(Pool *pool, Queue *pkgs, Id how, Id what);
306 extern int pool_isemptyupdatejob(Pool *pool, Id how, Id what);
308 extern const char *solver_select2str(Pool *pool, Id select, Id what);
309 extern const char *pool_job2str(Pool *pool, Id how, Id what, Id flagmask);
311 /* iterate over all literals of a rule */
312 #define FOR_RULELITERALS(l, pp, r) \
313 for (pp = r->d < 0 ? -r->d - 1 : r->d, \
314 l = r->p; l; l = (pp <= 0 ? (pp-- ? 0 : r->w2) : \
315 pool->whatprovidesdata[pp++]))
320 /* XXX: this currently doesn't work correctly for SOLVER_SOLVABLE_REPO and
321 SOLVER_SOLVABLE_ALL */
323 /* iterate over all packages selected by a job */
324 #define FOR_JOB_SELECT(p, pp, select, what) \
325 if (select == SOLVER_SOLVABLE_REPO || select == SOLVER_SOLVABLE_ALL) \
327 else for (pp = (select == SOLVER_SOLVABLE ? 0 : \
328 select == SOLVER_SOLVABLE_ONE_OF ? what : \
329 pool_whatprovides(pool, what)), \
330 p = (select == SOLVER_SOLVABLE ? what : pool->whatprovidesdata[pp++]); \
331 p ; p = pool->whatprovidesdata[pp++]) \
332 if (select == SOLVER_SOLVABLE_NAME && \
333 pool_match_nevr(pool, pool->solvables + p, what) == 0) \
341 #endif /* LIBSOLV_SOLVER_H */